Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
doanh doan » doanh doanh, doanh nhan, doanh luan
doanh hoan » doanh doanh, doanh khoa, doanh nhan
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
manh toan » thanh toan, anh tuan, tinh toan
san toan » van toan, dan toan, xuan toan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((doanh doan) OR (doanh hoan)) va nhung cong ((san toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((doanh doan) OR (doanh hoan)) va nhung cong ((san toan) or (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((doanh doan) OR (doanh hoan)) va nhung cong ((san toan) or (manh toan)) cau*.